73M1903

Modem Analog Front-End

Ideal AFE Solution for Cost-Sensitive Embedded Soft Modem Solutions

Data Sheet (Rev. 2)
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Overview

  • Highly Integrated AFE for Soft Modem Applications
  • External DAA Circuitry is Optimized for Best Cost Structure for Single and Multiple Country PSTN Access Compliance
  • Robust and Reliable Solution for Embedded Systems Designed for Normal and Extreme Environments
  • Easy Path to a Soft Modem Transition

The 73M1903 is a single-chip analog front-end (AFE) device used in embedded soft modem and voice applications including high-speed data modems, satellite set-top boxes, POS terminals, MFP and fax terminals, and IP phones. This device offers multiple features designed to reduce the external component count and deliver robust performance with a low-cost transformer DAA. The 73M1903 is pin-compatible with Teridian’s 73M2901CE modem chip, which facilitates the user to transition from the 73M2901 to a soft modem solution with minimal risk and redesign of the line-side DAA circuitry.

Applications

  • Embedded Modem Applications such as Medical and Industrial Telemetry
  • Multifunctional Printers (MFPs)
  • Personal Video Recorders
  • POS Terminals
  • Satellite Set-Top Boxes
  • Stand-Alone Fax Machines
  • Utility Met
73M1903
Modem Analog Front-End
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Documentation

Data Sheet 1

Application Note 1

Design Note 1

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